Broad-leaved evergreens, trees, shrubs and rock garden plants, lilies, etc. : spring 1933 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (E.C. Robbins, 1933)

Brooklyn Botanic Garden record - Brooklyn Botanic Garden. (Brooklyn Botanic Garden, 1925)

Brooklyn Botanic Garden record - Brooklyn Botanic Garden. (Brooklyn Botanic Garden, 1927)

Brooklyn Botanic Garden record - Brooklyn Botanic Garden. (Brooklyn Botanic Garden, 1929)

Brooklyn Botanic Garden record - Brooklyn Botanic Garden. (Brooklyn Botanic Garden, 1940)

Brooklyn Botanic Garden record - Brooklyn Botanic Garden. (Brooklyn Botanic Garden, 1942)

Die Bryophyten meiner zweiten Reise durch Bolivia - Herzog, Theodor Carl Julius, 1880 -1961 (E. Schweizerbart, 1916)

Bryson Ayres, 1932 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Bryson Ayres, 1932)

Budapest és környéke természetrajzi, orvosi és közmivelődési leirása : Budapest főváros : a magyar orvosok és természetvizsgálók XX. nagy-gyülésére emlékül - Dulácska, Géza, (Nyomatott a Magyar Királyi Egyetemi Könyvnyomdában, 1879)

Budd's flora of the Canadian Prairie Provinces (Research Branch, Agriculture Canada, 1987)

Bulbs and tuberous begonias, season 1937-1938 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (H.A. Hyde Co, 1937)

Buletinul Societății de Șciințe din Bucureșci, România = Bulletin de la Société des sciences de Bucarest, Roumanie - Societatea de Științe din București. (Societatea, 1892)

Bulletin - New York State Museum. (University of the State of New York, State Education Dept, 1976)

Bulletin - New York State Museum; Science Service. (University of the State of New York, 1956)

Bulletin - Natural History Society of Maryland (The Society, 1938)

Bulletin - Société des amis des sciences naturelles de Rouen. (1869)

Bulletin - New York State Museum. (University of the State of New York, State Education Dept, 1979)

Bulletin - Colorado Agricultural Experiment Station (Colorado State University Experiment Station, 1905)

Bulletin - Philippines. Bureau of Forestry. (Bureau of printing, 1919)

Bulletin - Virginia Native Plant Society. (The Society, 1999)

Bulletin - New York State Museum. (University of the State of New York, State Education Dept, 1981)

Bulletin - Société des amis des sciences naturelles de Rouen. (1884)

Bulletin - Société d'Étude des Sciences Naturelles de Béziers. (1894)

Bulletin - Société des amis des sciences naturelles de Rouen. (1888)

Bulletin - National Institutes of Health (U.S.) (U.S. Govt. Print. Off, 1910)

Bulletin - Société des amis des sciences naturelles de Rouen. (1913)

Bulletin - National Museum of Canada. (National Museum of Canada, 1929)

Bulletin - National Museum of Canada. (National Museum of Canada, 1935)

Bulletin - National Museum of Canada. (National Museum of Canada, 1938)

Bulletin - Société des amis des sciences naturelles de Rouen. (1865)

Bulletin - National Museum of Canada. (National Museum of Canada, 1940)

Bulletin - Société des amis des sciences naturelles de Rouen. (1905)

Bulletin - Société des amis des sciences naturelles de Rouen. (1910)

Bulletin - National Museum of Canada. (National Museum of Canada, 1945)

Bulletin - Société des amis des sciences naturelles de Rouen. (1914)

Bulletin - National Museum of Canada. (National Museum of Canada, 1950)

Bulletin - National Museum of Canada. (National Museum of Canada, 1951)

Bulletin - National Museum of Canada. (National Museum of Canada, 1953)

Bulletin - National Museum of Canada. (National Museum of Canada, 1957)

Bulletin - National Museum of Canada. (National Museum of Canada, 1958)

Bulletin - British Pteridological Society. (the Society, 1973)

Bulletin - British Pteridological Society. (the Society, 1979)

Bulletin - British Pteridological Society. (the Society, 1980)

Bulletin - British Pteridological Society. (the Society, 1981)

Bulletin - British Pteridological Society. (the Society, 1982)

Bulletin - British Pteridological Society. (the Society, 1983)

Bulletin - British Pteridological Society. (the Society, 1984)

Bulletin - British Pteridological Society. (the Society, 1985)

Bulletin - British Pteridological Society. (the Society, 1986)

Bulletin - British Pteridological Society. (the Society, 1987)

Bulletin - British Pteridological Society. (the Society, 1988)